Yonago in context: Street-network sprawl trends

Yonago in context

22.533.5<19751976–19901991–20052006–2020SNDi of street additions
22.533.5<19751976–19901991–20052006–2020SNDi of entire street network
YonagoTottori (Region)Japan (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Yonago plotted against Tottori and Japan. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Yonago's incremental SNDi rose from 2.86 to 3.5 between 1991-2005 and 2006-2020. In terms of the aggregate network, Yonago ranked 2nd out of 2 cities in Tottori and 128th out of 135 in Japan as of 2020.

New Street Additions (2006–2020)

SNDi value
3.5
Rank in Japan
102nd of 135
Rank in Tottori
1st of 2

Entire Network (Aggregate)

SNDi value
3.25
Rank in Japan
128th of 135
Rank in Tottori
2nd of 2

Rankings go from most connected to most disconnected — rank 1 is the most connected.

What about similarly populated cities?

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
YonagoDholkaArambagh

In new street additions, Yonago fluctuated in its street-construction patterns, while Dholka built increasingly disconnected streets from 1975 through 1976-1990, then improved and Arambagh built increasingly disconnected streets over time. Looking at the full network, Dholka and Arambagh both became progressively more disconnected, while Yonago fluctuated in connectivity. Notably, Yonago had a more sprawly network than Arambagh in 1975 but the two have since reversed their relative ranking.